Keith, L., & Jackson, J. C. (2016). The fur trade gamble: North West Company on the Pacific slope, 1800-1820. Washington State University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रKeith, Lloyd, और John C. Jackson. The Fur Trade Gamble: North West Company on the Pacific Slope, 1800-1820. Pullman, Washington: Washington State University Press, 2016.
एमएलए (8वां संस्करण) प्रशस्ति पत्रKeith, Lloyd, और John C. Jackson. The Fur Trade Gamble: North West Company on the Pacific Slope, 1800-1820. Washington State University Press, 2016.
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